User`s manual

Universal PCI Board User’s Manual Pin Assignments
10-26
DB25 (male)
The following accessories provide DB25 (male) serial connectors for your UPCI board:
Accessory Board Connector Serial Connectors
CBL-M44M25x4-50 DB44 (female) 4×DB25 (male)
CBL-RJ45M25-150 RJ45 4×DB25 (male)
OPT8B
CBL-M62M25x8-100 (OPT8C)
DB62 (female) 8×DB25 (male)
CBL-M78M25x8-100 DB78 (female) 8×DB25 (male)
1
14
13
25
The pin assignments for the DB25 (male) serial connector are shown below. There are different pin
assignments depending on the serial interface that your board is configured for.
Pin RS-232
RS-422
RS-485 (4W)
RS-485 (2W)
2 TxD RxD+(B) Data+(B)
3 RxD TxD+(B) ---
4 RTS --- ---
5 CTS --- ---
6 DSR --- ---
7 GND GND GND
8 DCD TxD-(A) ---
20 DTR RxD-(A) Data-(A)